diff --git a/libraries/render-utils/src/AmbientOcclusionEffect.cpp b/libraries/render-utils/src/AmbientOcclusionEffect.cpp index 65d7313efb..a6646d8e4a 100644 --- a/libraries/render-utils/src/AmbientOcclusionEffect.cpp +++ b/libraries/render-utils/src/AmbientOcclusionEffect.cpp @@ -21,7 +21,6 @@ #include "AbstractViewStateInterface.h" #include "AmbientOcclusionEffect.h" -#include "ProgramObject.h" #include "RenderUtil.h" #include "TextureCache.h" #include "DependencyManager.h" @@ -33,6 +32,8 @@ #include "gaussian_blur_vertical_vert.h" #include "gaussian_blur_horizontal_vert.h" #include "gaussian_blur_frag.h" +#include "occlusion_blend_vert.h" +#include "occlusion_blend_frag.h" const int ROTATION_WIDTH = 4; const int ROTATION_HEIGHT = 4; @@ -187,6 +188,9 @@ const gpu::PipelinePointer& AmbientOcclusion::getOcclusionPipeline() { gpu::ShaderPointer program = gpu::ShaderPointer(gpu::Shader::createProgram(vs, ps)); gpu::Shader::BindingSet slotBindings; + slotBindings.insert(gpu::Shader::Binding(std::string("depthTexture"), 0)); + slotBindings.insert(gpu::Shader::Binding(std::string("normalTexture"), 1)); + gpu::Shader::makeProgram(*program, slotBindings); //_drawItemBoundPosLoc = program->getUniforms().findLocation("inBoundPos"); @@ -282,6 +286,39 @@ const gpu::PipelinePointer& AmbientOcclusion::getHBlurPipeline() { return _hBlurPipeline; } +const gpu::PipelinePointer& AmbientOcclusion::getBlendPipeline() { + if (!_blendPipeline) { + auto vs = gpu::ShaderPointer(gpu::Shader::createVertex(std::string(occlusion_blend_vert))); + auto ps = gpu::ShaderPointer(gpu::Shader::createPixel(std::string(occlusion_blend_frag))); + gpu::ShaderPointer program = gpu::ShaderPointer(gpu::Shader::createProgram(vs, ps)); + + gpu::Shader::BindingSet slotBindings; + gpu::Shader::makeProgram(*program, slotBindings); + + gpu::StatePointer state = gpu::StatePointer(new gpu::State()); + + state->setDepthTest(false, false, gpu::LESS_EQUAL); + + // Blend on transparent + state->setBlendFunction(true, + gpu::State::SRC_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::INV_SRC_ALPHA, + gpu::State::DEST_ALPHA, gpu::State::BLEND_OP_ADD, gpu::State::ZERO); + + // Link the horizontal blur FBO to texture + _hBlurBuffer = gpu::FramebufferPointer(gpu::Framebuffer::create(gpu::Element::COLOR_RGBA_32, + DependencyManager::get()->getFrameBufferSize().width(), DependencyManager::get()->getFrameBufferSize().height())); + auto format = gpu::Element(gpu::VEC4, gpu::NUINT8, gpu::RGBA); + auto width = _hBlurBuffer->getWidth(); + auto height = _hBlurBuffer->getHeight(); + auto defaultSampler = gpu::Sampler(gpu::Sampler::FILTER_MIN_MAG_POINT); + _hBlurTexture = gpu::TexturePointer(gpu::Texture::create2D(format, width, height, defaultSampler)); + + // Good to go add the brand new pipeline + _blendPipeline.reset(gpu::Pipeline::create(program, state)); + } + return _blendPipeline; +} + void AmbientOcclusion::run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext) { // create a simple pipeline that does: @@ -308,7 +345,7 @@ void AmbientOcclusion::run(const render::SceneContextPointer& sceneContext, cons // Occlusion step getOcclusionPipeline(); batch.setResourceTexture(0, DependencyManager::get()->getPrimaryDepthTexture()); - batch.setResourceTexture(1, DependencyManager::get()->getPrimaryNormalTexture()); + batch.setResourceTexture(1, DependencyManager::get()->getPrimaryFramebuffer()->getRenderBuffer(0)); _occlusionBuffer->setRenderBuffer(0, _occlusionTexture); batch.setFramebuffer(_occlusionBuffer); @@ -339,7 +376,7 @@ void AmbientOcclusion::run(const render::SceneContextPointer& sceneContext, cons _hBlurBuffer->setRenderBuffer(0, _hBlurTexture); batch.setFramebuffer(_hBlurBuffer); - // bind the second gpu::Pipeline we need - for calculating blur buffer + // bind the third gpu::Pipeline we need - for calculating blur buffer batch.setPipeline(getHBlurPipeline()); DependencyManager::get()->renderQuad(batch, bottomLeft, topRight, texCoordTopLeft, texCoordBottomRight, color); @@ -348,8 +385,8 @@ void AmbientOcclusion::run(const render::SceneContextPointer& sceneContext, cons batch.setResourceTexture(0, _hBlurTexture); batch.setFramebuffer(DependencyManager::get()->getPrimaryFramebuffer()); - // bind the second gpu::Pipeline we need - batch.setPipeline(getOcclusionPipeline()); + // bind the fourth gpu::Pipeline we need - for + batch.setPipeline(getBlendPipeline()); glm::vec2 bottomLeftSmall(0.5f, -1.0f); glm::vec2 topRightSmall(1.0f, -0.5f); diff --git a/libraries/render-utils/src/AmbientOcclusionEffect.h b/libraries/render-utils/src/AmbientOcclusionEffect.h index a8ae33b690..d38624f24c 100644 --- a/libraries/render-utils/src/AmbientOcclusionEffect.h +++ b/libraries/render-utils/src/AmbientOcclusionEffect.h @@ -16,46 +16,6 @@ #include "render/DrawTask.h" -class AbstractViewStateInterface; -class ProgramObject; - -/// A screen space ambient occlusion effect. See John Chapman's tutorial at -/// http://john-chapman-graphics.blogspot.co.uk/2013/01/ssao-tutorial.html for reference. - -/* -class AmbientOcclusionEffect : public Dependency { - SINGLETON_DEPENDENCY - -public: - - void init(AbstractViewStateInterface* viewState); - - void run(const render::SceneContextPointer& sceneContext, const render::RenderContextPointer& renderContext); - typedef render::Job::Model JobModel; - - - AmbientOcclusionEffect() {} - virtual ~AmbientOcclusionEffect() {} - -private: - - ProgramObject* _occlusionProgram; - int _nearLocation; - int _farLocation; - int _leftBottomLocation; - int _rightTopLocation; - int _noiseScaleLocation; - int _texCoordOffsetLocation; - int _texCoordScaleLocation; - - ProgramObject* _blurProgram; - int _blurScaleLocation; - - GLuint _rotationTextureID; - AbstractViewStateInterface* _viewState; -}; -*/ - class AmbientOcclusion { public: @@ -67,12 +27,14 @@ public: const gpu::PipelinePointer& getOcclusionPipeline(); const gpu::PipelinePointer& getHBlurPipeline(); const gpu::PipelinePointer& getVBlurPipeline(); + const gpu::PipelinePointer& getBlendPipeline(); private: gpu::PipelinePointer _occlusionPipeline; gpu::PipelinePointer _hBlurPipeline; gpu::PipelinePointer _vBlurPipeline; + gpu::PipelinePointer _blendPipeline; gpu::FramebufferPointer _occlusionBuffer; gpu::FramebufferPointer _hBlurBuffer; diff --git a/libraries/render-utils/src/ambient_occlusion.slf b/libraries/render-utils/src/ambient_occlusion.slf index 4b7d6bfe2b..342f4148d2 100644 --- a/libraries/render-utils/src/ambient_occlusion.slf +++ b/libraries/render-utils/src/ambient_occlusion.slf @@ -40,9 +40,9 @@ void main(void) { float c = (2.0 * n) / (f + n - z * (f - n)); // convert to linear values //gl_FragColor = vec4(c, c, c, 1.0); - gl_FragColor = normalColor; + gl_FragColor = mix(depthColor, normalColor, normalColor.a); //vec3 p = getPosition(i.uv); //vec3 n = getNormal(i.uv); - vec2 rand = vec2(getRandom(varTexcoord.xy), getRandom(varTexcoord.yx)); + //vec2 rand = vec2(getRandom(varTexcoord.xy), getRandom(varTexcoord.yx)); } diff --git a/libraries/render-utils/src/occlusion_blend.slf b/libraries/render-utils/src/occlusion_blend.slf new file mode 100644 index 0000000000..30d3173f90 --- /dev/null +++ b/libraries/render-utils/src/occlusion_blend.slf @@ -0,0 +1,24 @@ +<@include gpu/Config.slh@> +<$VERSION_HEADER$> +// Generated on <$_SCRIBE_DATE$> +// +// occlusion_blend.frag +// fragment shader +// +// Created by Niraj Venkat on 7/20/15. +// Copyright 2015 High Fidelity, Inc. +// +// Distributed under the Apache License, Version 2.0. +// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html +// + +<@include DeferredBufferWrite.slh@> + +varying vec2 varTexcoord; + +uniform sampler2D blurredOcclusionTexture; + +void main(void) { + vec4 depthColor = texture2D(blurredOcclusionTexture, varTexcoord.xy); + gl_FragColor = depthColor; +} diff --git a/libraries/render-utils/src/occlusion_blend.slv b/libraries/render-utils/src/occlusion_blend.slv new file mode 100644 index 0000000000..53380a494f --- /dev/null +++ b/libraries/render-utils/src/occlusion_blend.slv @@ -0,0 +1,24 @@ +<@include gpu/Config.slh@> +<$VERSION_HEADER$> +// Generated on <$_SCRIBE_DATE$> +// +// occlusion_blend.vert +// vertex shader +// +// Created by Niraj Venkat on 7/20/15. +// Copyright 2015 High Fidelity, Inc. +// +// Distributed under the Apache License, Version 2.0. +// See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html +// + +<@include gpu/Transform.slh@> + +<$declareStandardTransform()$> + +varying vec2 varTexcoord; + +void main(void) { + varTexcoord = gl_MultiTexCoord0.xy; + gl_Position = gl_Vertex; +}