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// This code contains NVIDIA Confidential Information and is disclosed to you
// under a form of NVIDIA software license agreement provided separately to you.
//
// Notice
// NVIDIA Corporation and its licensors retain all intellectual property and
// proprietary rights in and to this software and related documentation and
// any modifications thereto. Any use, reproduction, disclosure, or
// distribution of this software and related documentation without an express
// license agreement from NVIDIA Corporation is strictly prohibited.
//
// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
//
// Information and code furnished is believed to be accurate and reliable.
// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
// information or for any infringement of patents or other rights of third parties that may
// result from its use. No license is granted by implication or otherwise under any patent
// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
// This code supersedes and replaces all information previously supplied.
// NVIDIA Corporation products are not authorized for use as critical
// components in life support devices or systems without express written approval of
// NVIDIA Corporation.
//
// Copyright (c) 2013-2020 NVIDIA Corporation. All rights reserved.
#pragma once
#define STRINGIFY(A) #A
#include "../core/maths.h"
#include "../core/mesh.h"
#include "../include/NvFlex.h"
void GetRenderDevice(void** device, void** context);
struct DiffuseRenderBuffers;
struct FluidRenderBuffers;
struct SDL_Window;
struct RenderInitOptions
{
RenderInitOptions():
defaultFontHeight(-1),
asyncComputeBenchmark(false),
fullscreen(false),
numMsaaSamples(1),
window(nullptr)
{}
int defaultFontHeight; ///< Set to -1 for the default
bool asyncComputeBenchmark; ///< When set, will configure renderer to perform extra (unnecessary) rendering work to make sure async compute can take place.
bool fullscreen;
int numMsaaSamples;
SDL_Window* window;
};
void InitRender(const RenderInitOptions& options);
void DestroyRender();
void ReshapeRender(SDL_Window* window);
void StartFrame(Vec4 clearColor);
void EndFrame();
void StartGpuWork();
void EndGpuWork();
void FlushGraphicsAndWait();
// set to true to enable vsync
void PresentFrame(bool fullsync);
void GetViewRay(int x, int y, Vec3& origin, Vec3& dir);
// read back pixel values
void ReadFrame(int* backbuffer, int width, int height);
void SetView(Matrix44 view, Matrix44 proj);
void SetFillMode(bool wireframe);
void SetCullMode(bool enabled);
// debug draw methods
void BeginLines();
void DrawLine(const Vec3& p, const Vec3& q, const Vec4& color);
void EndLines();
// shadowing
struct ShadowMap;
ShadowMap* ShadowCreate();
void ShadowDestroy(ShadowMap* map);
void ShadowBegin(ShadowMap* map);
void ShadowEnd();
struct RenderTexture;
RenderTexture* CreateRenderTexture(const char* filename);
RenderTexture* CreateRenderTarget(int with, int height, bool depth);
void DestroyRenderTexture(RenderTexture* tex);
void SetRenderTarget(RenderTexture* target);
struct RenderMaterial
{
RenderMaterial()
{
frontColor = 0.5f;//Vec4(SrgbToLinear(Colour(71.0f/255.0f, 165.0f/255.0f, 1.0f)));
backColor = 0.5f;//Vec4(SrgbToLinear(Colour(165.0f/255.0f, 71.0f/255.0f, 1.0f)));
roughness = 0.5f;
metallic = 0.0f;
specular = 0.5f;
colorTex = NULL;
hidden = false;
}
Vec3 frontColor;
Vec3 backColor;
float roughness;
float metallic;
float specular;
bool hidden;
RenderTexture* colorTex;
};
struct RenderMesh;
RenderMesh* CreateRenderMesh(const Mesh* m);
void DestroyRenderMesh(RenderMesh* m);
void DrawRenderMesh(RenderMesh* m, const Matrix44& xform, const RenderMaterial& mat);
void DrawRenderMeshInstances(RenderMesh* m, const Matrix44* xforms, int n, const RenderMaterial& mat);
// primitive draw methods
void DrawPlanes(Vec4* planes, int n, float bias);
void DrawPoints(FluidRenderBuffers* buffer, int n, int offset, float radius, float screenWidth, float screenAspect, float fov, Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowTex, bool showDensity);
void DrawMesh(const Mesh*, Vec3 color);
void DrawCloth(const Vec4* positions, const Vec4* normals, const float* uvs, const int* indices, int numTris, int numPositions, int colorIndex=3, float expand=0.0f, bool twosided=true, bool smooth=true);
void DrawBuffer(float* buffer, Vec3 camPos, Vec3 lightPos);
void DrawRope(Vec4* positions, int* indices, int numIndices, float radius, int color);
struct GpuMesh;
GpuMesh* CreateGpuMesh(const Mesh* m);
void DestroyGpuMesh(GpuMesh* m);
void DrawGpuMesh(GpuMesh* m, const Matrix44& xform, const Vec3& color);
void DrawGpuMeshInstances(GpuMesh* m, const Matrix44* xforms, int n, const Vec3& color);
// main lighting shader
void BindSolidShader(Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowTex, float bias, Vec4 fogColor);
void UnbindSolidShader();
float RendererGetDeviceTimestamps(unsigned long long* begin, unsigned long long* end, unsigned long long* freq);
void* GetGraphicsCommandQueue();
void GraphicsTimerBegin();
void GraphicsTimerEnd();
// new fluid renderer
struct FluidRenderer;
// owns render targets and shaders associated with fluid rendering
FluidRenderer* CreateFluidRenderer(uint32_t width, uint32_t height);
void DestroyFluidRenderer(FluidRenderer*);
FluidRenderBuffers* CreateFluidRenderBuffers(int numParticles, bool enableInterop);
void DestroyFluidRenderBuffers(FluidRenderBuffers* buffers);
// update fluid particle buffers from a FlexSovler
void UpdateFluidRenderBuffers(FluidRenderBuffers* buffers, NvFlexSolver* flex, bool anisotropy, bool density);
// update fluid particle buffers from host memory
void UpdateFluidRenderBuffers(FluidRenderBuffers* buffers,
Vec4* particles,
float* densities,
Vec4* anisotropy1,
Vec4* anisotropy2,
Vec4* anisotropy3,
int numParticles,
int* indices,
int numIndices);
// owns diffuse particle vertex buffers
DiffuseRenderBuffers* CreateDiffuseRenderBuffers(int numDiffuseParticles, bool& enableInterop);
void DestroyDiffuseRenderBuffers(DiffuseRenderBuffers* buffers);
// update diffuse particle vertex buffers from a NvFlexSolver
void UpdateDiffuseRenderBuffers(DiffuseRenderBuffers* buffers, NvFlexSolver* solver);
// update diffuse particle vertex buffers from host memory
void UpdateDiffuseRenderBuffers(DiffuseRenderBuffers* buffers,
Vec4* diffusePositions,
Vec4* diffuseVelocities,
int numDiffuseParticles);
// Returns the number of particles in the diffuse buffers
int GetNumDiffuseRenderParticles(DiffuseRenderBuffers* buffers);
// screen space fluid rendering
void RenderEllipsoids(FluidRenderer* render, FluidRenderBuffers* buffers, int n, int offset, float radius, float screenWidth, float screenAspect, float fov, Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowTex, Vec4 color, float blur, float ior, bool debug);
void RenderDiffuse(FluidRenderer* render, DiffuseRenderBuffers* buffer, int n, float radius, float screenWidth, float screenAspect, float fov, Vec4 color, Vec3 lightPos, Vec3 lightTarget, Matrix44 lightTransform, ShadowMap* shadowTex, float motionBlur, float inscatter, float outscatter, bool shadow, bool front);
// UI rendering
void DrawImguiGraph();
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