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Review mesh loading and textures generation

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raysan5
2017-07-21 09:34:09 +02:00
parent 63fd96354e
commit 2679c4ae9b
6 changed files with 49 additions and 34 deletions
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20
src/models.c
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@ -597,12 +597,13 @@ Model LoadModel(const char *fileName)
}
// Load model from generated mesh
Model LoadModelFromMesh(Mesh mesh, bool dynamic)
// WARNING: A shallow copy of mesh is generated, passed by value,
// as long as struct contains pointers to data and some values, we get a copy
// of mesh pointing to same data as original version... be careful!
Model LoadModelFromMesh(Mesh mesh)
{
Model model = { 0 };
rlLoadMesh(&mesh, dynamic);
model.mesh = mesh;
model.transform = MatrixIdentity();
model.material = LoadMaterialDefault();
@ -646,6 +647,7 @@ void UnloadMesh(Mesh *mesh)
}
// Generated cuboid mesh
// NOTE: Vertex data is uploaded to GPU
Mesh GenMeshCube(float width, float height, float length)
{
Mesh mesh = { 0 };
@ -759,11 +761,15 @@ Mesh GenMeshCube(float width, float height, float length)
mesh.vertexCount = 24;
mesh.triangleCount = 12;
// Upload vertex data to GPU (static mesh)
rlLoadMesh(&mesh, false);
return mesh;
}
// Generate a mesh from heightmap
// NOTE: Vertex data is uploaded to GPU
Mesh GenMeshHeightmap(Image heightmap, Vector3 size)
{
#define GRAY_VALUE(c) ((c.r+c.g+c.b)/3)
@ -865,10 +871,15 @@ Mesh GenMeshHeightmap(Image heightmap, Vector3 size)
}
free(pixels);
// Upload vertex data to GPU (static mesh)
rlLoadMesh(&mesh, false);
return mesh;
}
// Generate a cubes mesh from pixel data
// NOTE: Vertex data is uploaded to GPU
Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize)
{
Mesh mesh = { 0 };
@ -1219,6 +1230,9 @@ Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize)
free(mapTexcoords);
free(cubicmapPixels); // Free image pixel data
// Upload vertex data to GPU (static mesh)
rlLoadMesh(&mesh, false);
return mesh;
}

13
src/raylib.h
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@ -409,10 +409,11 @@ typedef struct BoundingBox {
} BoundingBox;
// Vertex data definning a mesh
// NOTE: Data stored in CPU memory (and GPU)
typedef struct Mesh {
int vertexCount; // Number of vertices stored in arrays
int triangleCount; // Number of triangles stored (indexed or not)
float *vertices; // Vertex position (XYZ - 3 components per vertex) (shader-location = 0)
float *texcoords; // Vertex texture coordinates (UV - 2 components per vertex) (shader-location = 1)
float *texcoords2; // Vertex second texture coordinates (useful for lightmaps) (shader-location = 5)
@ -981,15 +982,19 @@ RLAPI void DrawGizmo(Vector3 position);
// Model loading/unloading functions
RLAPI Model LoadModel(const char *fileName); // Load model from files (mesh and material)
RLAPI Model LoadModelFromMesh(Mesh mesh, bool dynamic); // Load model from generated mesh
RLAPI Model LoadModelFromMesh(Mesh mesh); // Load model from generated mesh
RLAPI void UnloadModel(Model model); // Unload model from memory (RAM and/or VRAM)
// Mesh loading/unloading functions
RLAPI Mesh LoadMesh(const char *fileName); // Load mesh from file
//RLAPI void UpdateMesh(Mesh *mesh, int type, void *data); // Update mesh data (CPU and GPU)
RLAPI void UnloadMesh(Mesh *mesh); // Unload mesh from memory (RAM and/or VRAM)
//RLAPI Mesh GenMeshPlane(float width, float length, int resX, int resZ); // Generate plane mesh (with desired subdivisions)
RLAPI Mesh GenMeshCube(float width, float height, float length); // Generate cuboid mesh
//RLAPI Mesh GenMeshSphere(float radius, int rings, int slices); // Generate sphere mesh (standard sphere)
//RLAPI Mesh GenMeshCylinder(float radiusTop, float radiusBottom, float height, int slices); // Generate cylinder mesh
//RLAPI Mesh GenMeshTorus(float radius1, float radius2, int radSeg, int sides); // Generate torus mesh
//RLAPI Mesh GenMeshTube(float radius1, float radius2, float height, int sides); // Generate tube mesh
RLAPI Mesh GenMeshHeightmap(Image heightmap, Vector3 size); // Generate heightmap mesh from image data
RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize); // Generate cubes-based map mesh from image data
@ -997,8 +1002,6 @@ RLAPI Mesh GenMeshCubicmap(Image cubicmap, Vector3 cubeSize);
RLAPI Material LoadMaterial(const char *fileName); // Load material from file
RLAPI Material LoadMaterialDefault(void); // Load default material (Supports: DIFFUSE, SPECULAR, NORMAL maps)
RLAPI void UnloadMaterial(Material material); // Unload material from GPU memory (VRAM)
RLAPI void SetMaterialTexture(Material *mat, int mapType, Texture2D texture); // Set material texture
RLAPI void UnsetMaterialTexture(Material *mat, int mapType); // Unset texture from material and unload it from GPU
// Model drawing functions
RLAPI void DrawModel(Model model, Vector3 position, float scale, Color tint); // Draw a model (with texture if set)

12
src/rlgl.c
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@ -2520,10 +2520,7 @@ Texture2D GenTextureCubemap(Shader shader, Texture2D skyHDR, int size)
Texture2D cubemap = { 0 };
#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
// NOTE: SetShaderDefaultLocations() already setups locations for projection and view Matrix in shader
// TODO: Locations should be taken out of this function... too shader dependant...
SetShaderValuei(shader, GetShaderLocation(shader, "environmentMap"), (int[1]){ 0 }, 1);
SetShaderValuei(shader, texmapLoc, (int[1]){ 0 }, 1); // Set default active texture to 0
// Other locations should be setup externally in shader before calling the function
// Set up depth face culling and cubemap seamless
glDisable(GL_CULL_FACE);
@ -2600,8 +2597,7 @@ Texture2D GenTextureIrradiance(Shader shader, Texture2D cubemap, int size)
#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
// NOTE: SetShaderDefaultLocations() already setups locations for projection and view Matrix in shader
// TODO: Locations should be taken out of this function... too shader dependant...
SetShaderValuei(shader, GetShaderLocation(shader, "environmentMap"), (int[1]){ 0 }, 1);
// Other locations should be setup externally in shader before calling the function
// Setup framebuffer
unsigned int fbo, rbo;
@ -2672,9 +2668,9 @@ Texture2D GenTexturePrefilter(Shader shader, Texture2D cubemap, int size)
#if defined(GRAPHICS_API_OPENGL_33) || defined(GRAPHICS_API_OPENGL_ES2)
// NOTE: SetShaderDefaultLocations() already setups locations for projection and view Matrix in shader
// Other locations should be setup externally in shader before calling the function
// TODO: Locations should be taken out of this function... too shader dependant...
int roughnessLoc = GetShaderLocation(shader, "roughness");
SetShaderValuei(shader, GetShaderLocation(shader, "environmentMap"), (int[1]){ 0 }, 1);
int roughnessLoc = GetShaderLocation(shader, "roughness");
// Setup framebuffer
unsigned int fbo, rbo;