Kearwood Gilbert
eb6ee6c676
Fixed bug that caused the Reflection Map scale to be swapped with the Normal Map scale material parameter. Fixed bug that caused the Reflection Map offset to be swapped with the Normal Map offset material parameter. --HG-- branch : nfb
354 lines
16 KiB
C++
354 lines
16 KiB
C++
//
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// KRMaterial.cpp
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// KREngine
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//
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// Copyright 2012 Kearwood Gilbert. All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other materials
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// provided with the distribution.
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//
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// THIS SOFTWARE IS PROVIDED BY KEARWOOD GILBERT ''AS IS'' AND ANY EXPRESS OR IMPLIED
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// WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
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// FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL KEARWOOD GILBERT OR
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// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
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// ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
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// ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// The views and conclusions contained in the software and documentation are those of the
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// authors and should not be interpreted as representing official policies, either expressed
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// or implied, of Kearwood Gilbert.
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//
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#include "KREngine-common.h"
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#include "KRMaterial.h"
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#include "KRTextureManager.h"
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#include "KRcontext.h"
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KRMaterial::KRMaterial(KRContext &context, const char *szName) : KRResource(context, szName) {
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m_name = szName;
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m_pAmbientMap = NULL;
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m_pDiffuseMap = NULL;
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m_pSpecularMap = NULL;
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m_pNormalMap = NULL;
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m_pReflectionMap = NULL;
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m_pReflectionCube = NULL;
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m_ambientColor = KRVector3::Zero();
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m_diffuseColor = KRVector3::One();
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m_specularColor = KRVector3::One();
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m_reflectionColor = KRVector3::Zero();
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m_tr = (GLfloat)1.0f;
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m_ns = (GLfloat)0.0f;
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m_ambientMap = "";
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m_diffuseMap = "";
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m_specularMap = "";
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m_normalMap = "";
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m_reflectionMap = "";
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m_reflectionCube = "";
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m_ambientMapOffset = KRVector2(0.0f, 0.0f);
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m_specularMapOffset = KRVector2(0.0f, 0.0f);
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m_diffuseMapOffset = KRVector2(0.0f, 0.0f);
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m_ambientMapScale = KRVector2(1.0f, 1.0f);
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m_specularMapScale = KRVector2(1.0f, 1.0f);
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m_diffuseMapScale = KRVector2(1.0f, 1.0f);
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m_reflectionMapOffset = KRVector2(0.0f, 0.0f);
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m_reflectionMapScale = KRVector2(1.0f, 1.0f);
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m_alpha_mode = KRMATERIAL_ALPHA_MODE_OPAQUE;
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}
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KRMaterial::~KRMaterial() {
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}
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std::string KRMaterial::getExtension() {
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return "mtl";
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}
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bool KRMaterial::needsVertexTangents()
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{
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return m_normalMap.size() > 0;
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}
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bool KRMaterial::save(KRDataBlock &data) {
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std::stringstream stream;
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stream.precision(std::numeric_limits<long double>::digits10);
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stream.setf(std::ios::fixed,std::ios::floatfield);
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stream << "newmtl " << m_name;
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stream << "\nka " << m_ambientColor.x << " " << m_ambientColor.y << " " << m_ambientColor.z;
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stream << "\nkd " << m_diffuseColor.x << " " << m_diffuseColor.y << " " << m_diffuseColor.z;
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stream << "\nks " << m_specularColor.x << " " << m_specularColor.y << " " << m_specularColor.z;
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stream << "\nkr " << m_reflectionColor.x << " " << m_reflectionColor.y << " " << m_reflectionColor.z;
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stream << "\nTr " << m_tr;
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stream << "\nNs " << m_ns;
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if(m_ambientMap.size()) {
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stream << "\nmap_Ka " << m_ambientMap << ".pvr -s " << m_ambientMapScale.x << " " << m_ambientMapScale.y << " -o " << m_ambientMapOffset.x << " " << m_ambientMapOffset.y;
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} else {
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stream << "\n# map_Ka filename.pvr -s 1.0 1.0 -o 0.0 0.0";
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}
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if(m_diffuseMap.size()) {
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stream << "\nmap_Kd " << m_diffuseMap << ".pvr -s " << m_diffuseMapScale.x << " " << m_diffuseMapScale.y << " -o " << m_diffuseMapOffset.x << " " << m_diffuseMapOffset.y;
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} else {
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stream << "\n# map_Kd filename.pvr -s 1.0 1.0 -o 0.0 0.0";
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}
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if(m_specularMap.size()) {
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stream << "\nmap_Ks " << m_specularMap << ".pvr -s " << m_specularMapScale.x << " " << m_specularMapScale.y << " -o " << m_specularMapOffset.x << " " << m_specularMapOffset.y << "\n";
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} else {
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stream << "\n# map_Ks filename.pvr -s 1.0 1.0 -o 0.0 0.0";
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}
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if(m_normalMap.size()) {
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stream << "\nmap_Normal " << m_normalMap << ".pvr -s " << m_normalMapScale.x << " " << m_normalMapScale.y << " -o " << m_normalMapOffset.x << " " << m_normalMapOffset.y;
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} else {
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stream << "\n# map_Normal filename.pvr -s 1.0 1.0 -o 0.0 0.0";
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}
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if(m_reflectionMap.size()) {
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stream << "\nmap_Reflection " << m_reflectionMap << ".pvr -s " << m_reflectionMapScale.x << " " << m_reflectionMapScale.y << " -o " << m_reflectionMapOffset.x << " " << m_reflectionMapOffset.y;
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} else {
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stream << "\n# map_Reflection filename.pvr -s 1.0 1.0 -o 0.0 0.0";
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}
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if(m_reflectionCube.size()) {
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stream << "map_ReflectionCube " << m_reflectionCube << ".pvr";
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} else {
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stream << "\n# map_ReflectionCube cubemapname";
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}
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switch(m_alpha_mode) {
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case KRMATERIAL_ALPHA_MODE_OPAQUE:
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stream << "\nalpha_mode opaque";
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break;
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case KRMATERIAL_ALPHA_MODE_TEST:
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stream << "\nalpha_mode test";
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break;
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case KRMATERIAL_ALPHA_MODE_BLENDONESIDE:
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stream << "\nalpha_mode blendoneside";
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break;
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case KRMATERIAL_ALPHA_MODE_BLENDTWOSIDE:
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stream << "\nalpha_mode blendtwoside";
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break;
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}
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stream << "\n# alpha_mode opaque, test, blendoneside, or blendtwoside";
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stream << "\n";
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data.append(stream.str());
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return true;
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}
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void KRMaterial::setAmbientMap(std::string texture_name, KRVector2 texture_scale, KRVector2 texture_offset) {
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m_ambientMap = texture_name;
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m_ambientMapScale = texture_scale;
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m_ambientMapOffset = texture_offset;
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}
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void KRMaterial::setDiffuseMap(std::string texture_name, KRVector2 texture_scale, KRVector2 texture_offset) {
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m_diffuseMap = texture_name;
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m_diffuseMapScale = texture_scale;
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m_diffuseMapOffset = texture_offset;
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}
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void KRMaterial::setSpecularMap(std::string texture_name, KRVector2 texture_scale, KRVector2 texture_offset) {
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m_specularMap = texture_name;
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m_specularMapScale = texture_scale;
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m_specularMapOffset = texture_offset;
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}
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void KRMaterial::setNormalMap(std::string texture_name, KRVector2 texture_scale, KRVector2 texture_offset) {
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m_normalMap = texture_name;
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m_normalMapScale = texture_scale;
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m_normalMapOffset = texture_offset;
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}
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void KRMaterial::setReflectionMap(std::string texture_name, KRVector2 texture_scale, KRVector2 texture_offset) {
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m_reflectionMap = texture_name;
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m_reflectionMapScale = texture_scale;
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m_reflectionMapOffset = texture_offset;
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}
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void KRMaterial::setReflectionCube(std::string texture_name) {
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m_reflectionCube = texture_name;
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}
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void KRMaterial::setAlphaMode(KRMaterial::alpha_mode_type alpha_mode) {
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m_alpha_mode = alpha_mode;
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}
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KRMaterial::alpha_mode_type KRMaterial::getAlphaMode() {
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return m_alpha_mode;
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}
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void KRMaterial::setAmbient(const KRVector3 &c) {
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m_ambientColor = c;
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}
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void KRMaterial::setDiffuse(const KRVector3 &c) {
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m_diffuseColor = c;
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}
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void KRMaterial::setSpecular(const KRVector3 &c) {
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m_specularColor = c;
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}
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void KRMaterial::setReflection(const KRVector3 &c) {
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m_reflectionColor = c;
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}
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void KRMaterial::setTransparency(GLfloat a) {
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if(a < 1.0f && m_alpha_mode == KRMaterial::KRMATERIAL_ALPHA_MODE_OPAQUE) {
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setAlphaMode(KRMaterial::KRMATERIAL_ALPHA_MODE_BLENDONESIDE);
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}
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m_tr = a;
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}
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void KRMaterial::setShininess(GLfloat s) {
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m_ns = s;
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}
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bool KRMaterial::isTransparent() {
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return m_tr < 1.0 || m_alpha_mode == KRMATERIAL_ALPHA_MODE_BLENDONESIDE || m_alpha_mode == KRMATERIAL_ALPHA_MODE_BLENDTWOSIDE;
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}
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bool KRMaterial::bind(KRCamera *pCamera, std::vector<KRPointLight *> &point_lights, std::vector<KRDirectionalLight *> &directional_lights, std::vector<KRSpotLight *>&spot_lights, const std::vector<KRBone *> &bones, const std::vector<KRMat4> &bind_poses, const KRViewport &viewport, const KRMat4 &matModel, KRTexture *pLightMap, KRNode::RenderPass renderPass) {
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bool bLightMap = pLightMap && pCamera->settings.bEnableLightMap;
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if(!m_pAmbientMap && m_ambientMap.size()) {
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m_pAmbientMap = getContext().getTextureManager()->getTexture(m_ambientMap);
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}
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if(!m_pDiffuseMap && m_diffuseMap.size()) {
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m_pDiffuseMap = getContext().getTextureManager()->getTexture(m_diffuseMap);
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}
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if(!m_pNormalMap && m_normalMap.size()) {
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m_pNormalMap = getContext().getTextureManager()->getTexture(m_normalMap);
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}
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if(!m_pSpecularMap && m_specularMap.size()) {
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m_pSpecularMap = getContext().getTextureManager()->getTexture(m_specularMap);
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}
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if(!m_pReflectionMap && m_reflectionMap.size()) {
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m_pReflectionMap = getContext().getTextureManager()->getTexture(m_reflectionMap);
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}
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if(!m_pReflectionCube && m_reflectionCube.size()) {
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m_pReflectionCube = getContext().getTextureManager()->getTextureCube(m_reflectionCube.c_str());
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}
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KRVector2 default_scale = KRVector2::One();
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KRVector2 default_offset = KRVector2::Zero();
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bool bHasReflection = m_reflectionColor != KRVector3::Zero();
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bool bDiffuseMap = m_pDiffuseMap != NULL && pCamera->settings.bEnableDiffuseMap;
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bool bNormalMap = m_pNormalMap != NULL && pCamera->settings.bEnableNormalMap;
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bool bSpecMap = m_pSpecularMap != NULL && pCamera->settings.bEnableSpecMap;
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bool bReflectionMap = m_pReflectionMap != NULL && pCamera->settings.bEnableReflectionMap && pCamera->settings.bEnableReflection && bHasReflection;
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bool bReflectionCubeMap = m_pReflectionCube != NULL && pCamera->settings.bEnableReflection && bHasReflection;
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bool bAlphaTest = (m_alpha_mode == KRMATERIAL_ALPHA_MODE_TEST) && bDiffuseMap;
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bool bAlphaBlend = (m_alpha_mode == KRMATERIAL_ALPHA_MODE_BLENDONESIDE) || (m_alpha_mode == KRMATERIAL_ALPHA_MODE_BLENDTWOSIDE);
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KRShader *pShader = getContext().getShaderManager()->getShader("ObjectShader", pCamera, point_lights, directional_lights, spot_lights, bones.size(), bDiffuseMap, bNormalMap, bSpecMap, bReflectionMap, bReflectionCubeMap, bLightMap, m_diffuseMapScale != default_scale && bDiffuseMap, m_specularMapScale != default_scale && bSpecMap, m_normalMapScale != default_scale && bNormalMap, m_reflectionMapScale != default_scale && bReflectionMap, m_diffuseMapOffset != default_offset && bDiffuseMap, m_specularMapOffset != default_offset && bSpecMap, m_normalMapOffset != default_offset && bNormalMap, m_reflectionMapOffset != default_offset && bReflectionMap, bAlphaTest, bAlphaBlend, renderPass);
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if(!getContext().getShaderManager()->selectShader(*pCamera, pShader, viewport, matModel, point_lights, directional_lights, spot_lights, 0, renderPass)) {
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return false;
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}
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// Bind bones
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if(pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_BONE_TRANSFORMS] != -1) {
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GLfloat bone_mats[256 * 16];
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GLfloat *bone_mat_component = bone_mats;
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for(int bone_index=0; bone_index < bones.size(); bone_index++) {
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KRBone *bone = bones[bone_index];
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// KRVector3 initialRotation = bone->getInitialLocalRotation();
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// KRVector3 rotation = bone->getLocalRotation();
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// KRVector3 initialTranslation = bone->getInitialLocalTranslation();
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// KRVector3 translation = bone->getLocalTranslation();
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// KRVector3 initialScale = bone->getInitialLocalScale();
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// KRVector3 scale = bone->getLocalScale();
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//
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//printf("%s - delta rotation: %.4f %.4f %.4f\n", bone->getName().c_str(), (rotation.x - initialRotation.x) * 180.0 / M_PI, (rotation.y - initialRotation.y) * 180.0 / M_PI, (rotation.z - initialRotation.z) * 180.0 / M_PI);
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//printf("%s - delta translation: %.4f %.4f %.4f\n", bone->getName().c_str(), translation.x - initialTranslation.x, translation.y - initialTranslation.y, translation.z - initialTranslation.z);
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// printf("%s - delta scale: %.4f %.4f %.4f\n", bone->getName().c_str(), scale.x - initialScale.x, scale.y - initialScale.y, scale.z - initialScale.z);
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KRMat4 skin_bone_bind_pose = bind_poses[bone_index];
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KRMat4 active_mat = bone->getActivePoseMatrix();
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KRMat4 inv_bind_mat = bone->getInverseBindPoseMatrix();
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KRMat4 inv_bind_mat2 = KRMat4::Invert(bind_poses[bone_index]);
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KRMat4 t = (inv_bind_mat * active_mat);
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KRMat4 t2 = inv_bind_mat2 * bone->getModelMatrix();
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for(int i=0; i < 16; i++) {
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*bone_mat_component++ = t[i];
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}
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}
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if(pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_BONE_TRANSFORMS] != -1) {
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glUniformMatrix4fv(pShader->m_uniforms[KRShader::KRENGINE_UNIFORM_BONE_TRANSFORMS], bones.size(), GL_FALSE, bone_mats);
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}
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}
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_AMBIENT, m_ambientColor + pCamera->settings.ambient_intensity);
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if(renderPass == KRNode::RENDER_PASS_FORWARD_OPAQUE) {
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// We pre-multiply the light color with the material color in the forward renderer
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_DIFFUSE, KRVector3(m_diffuseColor.x * pCamera->settings.light_intensity.x, m_diffuseColor.y * pCamera->settings.light_intensity.y, m_diffuseColor.z * pCamera->settings.light_intensity.z));
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} else {
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_DIFFUSE, m_diffuseColor);
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}
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if(renderPass == KRNode::RENDER_PASS_FORWARD_OPAQUE) {
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// We pre-multiply the light color with the material color in the forward renderer
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_SPECULAR, KRVector3(m_specularColor.x * pCamera->settings.light_intensity.x, m_specularColor.y * pCamera->settings.light_intensity.y, m_specularColor.z * pCamera->settings.light_intensity.z));
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} else {
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_SPECULAR, m_specularColor);
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}
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_SHININESS, m_ns);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_REFLECTION, m_reflectionColor);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_DIFFUSETEXTURE_SCALE, m_diffuseMapScale);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_SPECULARTEXTURE_SCALE, m_specularMapScale);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_REFLECTIONTEXTURE_SCALE, m_reflectionMapScale);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_NORMALTEXTURE_SCALE, m_normalMapScale);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_DIFFUSETEXTURE_OFFSET, m_diffuseMapOffset);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_SPECULARTEXTURE_OFFSET, m_specularMapOffset);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_REFLECTIONTEXTURE_OFFSET, m_reflectionMapOffset);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_NORMALTEXTURE_OFFSET, m_normalMapOffset);
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pShader->setUniform(KRShader::KRENGINE_UNIFORM_MATERIAL_ALPHA, m_tr);
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if(bDiffuseMap) {
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m_pContext->getTextureManager()->selectTexture(0, m_pDiffuseMap);
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}
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if(bSpecMap) {
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m_pContext->getTextureManager()->selectTexture(1, m_pSpecularMap);
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}
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if(bNormalMap) {
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m_pContext->getTextureManager()->selectTexture(2, m_pNormalMap);
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}
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if(bReflectionCubeMap && (renderPass == KRNode::RENDER_PASS_FORWARD_OPAQUE || renderPass == KRNode::RENDER_PASS_DEFERRED_OPAQUE)) {
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m_pContext->getTextureManager()->selectTexture(4, m_pReflectionCube);
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}
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if(bReflectionMap && (renderPass == KRNode::RENDER_PASS_FORWARD_OPAQUE || renderPass == KRNode::RENDER_PASS_DEFERRED_OPAQUE)) {
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// GL_TEXTURE7 is used for reading the depth buffer in gBuffer pass 2 and re-used for the reflection map in gBuffer Pass 3 and in forward rendering
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m_pContext->getTextureManager()->selectTexture(7, m_pReflectionMap);
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}
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return true;
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}
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const std::string &KRMaterial::getName() const
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{
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return m_name;
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}
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