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Added normal support

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This commit is contained in:
Fall 2021-12-26 00:37:24 -03:00
parent 423fdb320a
commit 3eb6702389
1 changed files with 48 additions and 21 deletions
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41
src/rlgl.h
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@ -320,6 +320,7 @@ typedef struct rlVertexBuffer {
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 *normals; // Vertex normals (XYZ - 3 components per vertex) (shader-location = 2)
unsigned char *colors; // Vertex colors (RGBA - 4 components per vertex) (shader-location = 3)
#if defined(GRAPHICS_API_OPENGL_11) || defined(GRAPHICS_API_OPENGL_33)
unsigned int *indices; // Vertex indices (in case vertex data comes indexed) (6 indices per quad)
@ -328,7 +329,10 @@ typedef struct rlVertexBuffer {
unsigned short *indices; // Vertex indices (in case vertex data comes indexed) (6 indices per quad)
#endif
unsigned int vaoId; // OpenGL Vertex Array Object id
unsigned int vboId[4]; // OpenGL Vertex Buffer Objects id (4 types of vertex data)
// NOTE: Normals will be using vboId[4] not to break any kind of operation. I am very unexperienced
// with OpenGL, so I'd rather not mess with any existing code; beware of any OCD attacks :)
unsigned int vboId[5]; // OpenGL Vertex Buffer Objects id (5 types of vertex data - including normals!)
} rlVertexBuffer;
// Draw call type
@ -1342,8 +1346,10 @@ void rlVertex3f(float x, float y, float z)
RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].texcoords[2*RLGL.State.vertexCounter] = RLGL.State.texcoordx;
RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].texcoords[2*RLGL.State.vertexCounter + 1] = RLGL.State.texcoordy;
// TODO: Add current normal
// By default rlVertexBuffer type does not store normals
// Add current normal
RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].normals[3 * RLGL.State.vertexCounter] = RLGL.State.normalx;
RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].normals[3 * RLGL.State.vertexCounter + 1] = RLGL.State.normaly;
RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].normals[3 * RLGL.State.vertexCounter + 2] = RLGL.State.normalz;
// Add current color
RLGL.currentBatch->vertexBuffer[RLGL.currentBatch->currentBuffer].colors[4*RLGL.State.vertexCounter] = RLGL.State.colorr;
@ -1987,7 +1993,7 @@ void rlLoadExtensions(void *loader)
// Register supported extensions flags
// OpenGL 3.3 extensions supported by default (core)
RLGL.ExtSupported.vao = true;
if (GLAD_GL_ARB_vertex_array_object) RLGL.ExtSupported.vao = true;
RLGL.ExtSupported.instancing = true;
RLGL.ExtSupported.texNPOT = true;
RLGL.ExtSupported.texFloat32 = true;
@ -2281,6 +2287,7 @@ rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements)
batch.vertexBuffer[i].vertices = (float *)RL_MALLOC(bufferElements*3*4*sizeof(float)); // 3 float by vertex, 4 vertex by quad
batch.vertexBuffer[i].texcoords = (float *)RL_MALLOC(bufferElements*2*4*sizeof(float)); // 2 float by texcoord, 4 texcoord by quad
batch.vertexBuffer[i].normals = (float *)RL_MALLOC(bufferElements*3*4*sizeof(float)); // 3 float by vertex, 4 vertex by quad
batch.vertexBuffer[i].colors = (unsigned char *)RL_MALLOC(bufferElements*4*4*sizeof(unsigned char)); // 4 float by color, 4 colors by quad
#if defined(GRAPHICS_API_OPENGL_33)
batch.vertexBuffer[i].indices = (unsigned int *)RL_MALLOC(bufferElements*6*sizeof(unsigned int)); // 6 int by quad (indices)
@ -2291,6 +2298,7 @@ rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements)
for (int j = 0; j < (3*4*bufferElements); j++) batch.vertexBuffer[i].vertices[j] = 0.0f;
for (int j = 0; j < (2*4*bufferElements); j++) batch.vertexBuffer[i].texcoords[j] = 0.0f;
for (int j = 0; j < (3*4*bufferElements); j++) batch.vertexBuffer[i].normals[j] = 0.0f;
for (int j = 0; j < (4*4*bufferElements); j++) batch.vertexBuffer[i].colors[j] = 0;
int k = 0;
@ -2340,6 +2348,13 @@ rlRenderBatch rlLoadRenderBatch(int numBuffers, int bufferElements)
glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]);
glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0);
// Vertex normal buffer (shader-location = 2)
glGenBuffers(1, &batch.vertexBuffer[i].vboId[4]);
glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[4]);
glBufferData(GL_ARRAY_BUFFER, bufferElements*3*4*sizeof(float), batch.vertexBuffer[i].normals, GL_DYNAMIC_DRAW);
glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL]);
glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL], 3, GL_FLOAT, 0, 0, 0);
// Vertex color buffer (shader-location = 3)
glGenBuffers(1, &batch.vertexBuffer[i].vboId[2]);
glBindBuffer(GL_ARRAY_BUFFER, batch.vertexBuffer[i].vboId[2]);
@ -2416,6 +2431,7 @@ void rlUnloadRenderBatch(rlRenderBatch batch)
glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[1]);
glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[2]);
glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[3]);
glDeleteBuffers(1, &batch.vertexBuffer[i].vboId[4]);
// Delete VAOs from GPU (VRAM)
if (RLGL.ExtSupported.vao) glDeleteVertexArrays(1, &batch.vertexBuffer[i].vaoId);
@ -2423,6 +2439,7 @@ void rlUnloadRenderBatch(rlRenderBatch batch)
// Free vertex arrays memory from CPU (RAM)
RL_FREE(batch.vertexBuffer[i].vertices);
RL_FREE(batch.vertexBuffer[i].texcoords);
RL_FREE(batch.vertexBuffer[i].normals);
RL_FREE(batch.vertexBuffer[i].colors);
RL_FREE(batch.vertexBuffer[i].indices);
}
@ -2457,6 +2474,10 @@ void rlDrawRenderBatch(rlRenderBatch *batch)
glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*2*sizeof(float), batch->vertexBuffer[batch->currentBuffer].texcoords);
//glBufferData(GL_ARRAY_BUFFER, sizeof(float)*2*4*batch->vertexBuffer[batch->currentBuffer].elementCount, batch->vertexBuffer[batch->currentBuffer].texcoords, GL_DYNAMIC_DRAW); // Update all buffer
// Vertex normal buffer
glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[4]);
glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*3*sizeof(float), batch->vertexBuffer[batch->currentBuffer].normals);
// Colors buffer
glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]);
glBufferSubData(GL_ARRAY_BUFFER, 0, RLGL.State.vertexCounter*4*sizeof(unsigned char), batch->vertexBuffer[batch->currentBuffer].colors);
@ -2520,8 +2541,8 @@ void rlDrawRenderBatch(rlRenderBatch *batch)
glUniformMatrix4fv(RLGL.State.currentShaderLocs[RL_SHADER_LOC_MATRIX_MVP], 1, false, matMVPfloat);
if (RLGL.ExtSupported.vao) glBindVertexArray(batch->vertexBuffer[batch->currentBuffer].vaoId);
else
{
// else - Why is this here!?
//{
// Bind vertex attrib: position (shader-location = 0)
glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[0]);
glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_POSITION], 3, GL_FLOAT, 0, 0, 0);
@ -2532,13 +2553,18 @@ void rlDrawRenderBatch(rlRenderBatch *batch)
glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01], 2, GL_FLOAT, 0, 0, 0);
glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01]);
// Bind vertex attrib: normal (shader-location = 2)
glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[4]);
glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL], 3, GL_FLOAT, 0, 0, 0);
glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL]);
// Bind vertex attrib: color (shader-location = 3)
glBindBuffer(GL_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[2]);
glVertexAttribPointer(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR], 4, GL_UNSIGNED_BYTE, GL_TRUE, 0, 0);
glEnableVertexAttribArray(RLGL.State.currentShaderLocs[RL_SHADER_LOC_VERTEX_COLOR]);
glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, batch->vertexBuffer[batch->currentBuffer].vboId[3]);
}
//}
// Setup some default shader values
glUniform4f(RLGL.State.currentShaderLocs[RL_SHADER_LOC_COLOR_DIFFUSE], 1.0f, 1.0f, 1.0f, 1.0f);
@ -4351,6 +4377,7 @@ static void rlLoadShaderDefault(void)
// Set default shader locations: attributes locations
RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_POSITION] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexPosition");
RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_TEXCOORD01] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexTexCoord");
RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_NORMAL] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexNormal");
RLGL.State.defaultShaderLocs[RL_SHADER_LOC_VERTEX_COLOR] = glGetAttribLocation(RLGL.State.defaultShaderId, "vertexColor");
// Set default shader locations: uniform locations