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-rw-r--r--themes/Renderer3d.cpp263
1 files changed, 0 insertions, 263 deletions
diff --git a/themes/Renderer3d.cpp b/themes/Renderer3d.cpp
deleted file mode 100644
index 5f9ce88..0000000
--- a/themes/Renderer3d.cpp
+++ /dev/null
@@ -1,263 +0,0 @@
-#include "Renderer3d.h"
-#include "Shader.h"
-#include "list.h"
-#include "mathlib.h"
-#include "WebglContext.h"
-#include "Logger.h"
-#include <cstdio>
-
-// Note: In the 'transform' attribute, the transform.x is the scale,
-// transform.y is the rotation, and transform.zw is the translatiob.
-const char* vertexShader =
- "attribute vec4 position; \n"
- "attribute vec4 color; \n"
- "attribute vec4 normal; \n"
- "uniform mat4 projection; \n"
- "uniform mat4 view; \n"
- "uniform mat4 model; \n"
- "varying lowp vec4 VertexColor; \n"
- "varying lowp vec4 VertexNormal; \n"
- "void main() { \n"
- " vec4 fragmentPosition = projection * view * model * position; \n"
- " gl_Position = fragmentPosition; \n"
- " VertexColor = color; \n"
- " VertexNormal = normal; \n"
- "}";
-
-const char* fragmentShader =
- "varying lowp vec4 VertexColor; \n"
- "varying lowp vec4 VertexNormal; \n"
- "void main() { \n"
- " const lowp vec3 lightDirection = vec3(0.0, 1.0, 0.0);\n"
- " gl_FragColor = vec4(VertexColor.xyz * dot(VertexNormal.xyz, lightDirection), 1); \n"
- "}";
-
-EM_BOOL onScreenSizeChanged_3D(int eventType, const EmscriptenUiEvent *uiEvent, void *userData) {
- Renderer3D* renderer = (Renderer3D*)userData;
-
- EMSCRIPTEN_RESULT result = emscripten_set_canvas_element_size( renderer->context->query, uiEvent->documentBodyClientWidth, uiEvent->documentBodyClientHeight);
- if (result != EMSCRIPTEN_RESULT_SUCCESS) {
- logger_error("Failed to resize element at query: %s\n", renderer->context->query);
- }
- //renderer->projection = Mat4x4().getOrthographicMatrix(0, renderer->context->width, 0, renderer->context->height);
-
- return true;
-}
-
-void Renderer3D::load(WebglContext* inContext) {
- context = inContext;
- printf("Compiling Renderer2d shader...\n");
- shader = loadShader(vertexShader, fragmentShader);
-
- useShader(shader);
- attributes.position = getShaderAttribute(shader, "position");
- attributes.color = getShaderAttribute(shader, "color");
- attributes.normal = getShaderAttribute(shader, "normal");
- uniforms.projection = getShaderUniform(shader, "projection");
- uniforms.view = getShaderUniform(shader, "view");
- uniforms.model = getShaderUniform(shader, "model");
- projection = Mat4x4().getPerspectiveProjection(0.1, 1000.f, 0.872f, static_cast<f32>(context->width) / static_cast<f32>(context->height));
- view = Mat4x4().getLookAt({ 0, 25, 75 }, { 0, 15, 0 }, { 0, 1, 0 });
-
- logger_info("Renderer2d shader compiled.\n");
-
- emscripten_set_resize_callback(EMSCRIPTEN_EVENT_TARGET_WINDOW, this, false, onScreenSizeChanged_3D);
-}
-
-void Renderer3D::render() {
- glEnable(GL_DEPTH_TEST);
- glDepthFunc(GL_LEQUAL);
- glDepthMask(GL_TRUE);
- glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
- glEnable(GL_BLEND);
- glClearColor(clearColor.x, clearColor.y, clearColor.z, clearColor.w);
- glClearDepth(1.0f);
- glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT | GL_STENCIL_BUFFER_BIT);
- useShader(shader);
- setShaderMat4(uniforms.projection, projection);
- setShaderMat4(uniforms.view, view);
-}
-
-void Renderer3D::unload() {
- glClearColor(0.f, 0.f, 0.f, 0.f);
- glClear(GL_COLOR_BUFFER_BIT);
- glDeleteProgram(shader);
-}
-
-enum LineType {
- LineType_None,
- LineType_Comment,
- LineType_mtl,
- LineType_v,
- LineType_f,
- LineType_Unsupported
-};
-
-struct LineItem {
- LineType type = LineType_None;
-
- i32 idx = 0;
-
- union {
- f32 vertices[3];
- i32 indices[3];
- } v;
-};
-
-inline i32 readPastSpaces(i32 i, const char* content) {
- while (content[i] == ' ') i++;
- return i;
-}
-
-inline i32 readPastLine(i32 i, const char* content) {
- while (content[i] != '\n' && content[i] != '\0') i++;
- return i;
-}
-
-inline i32 readToken(i32 i, const char* content, char* output) {
- i32 tidx = 0;
- i = readPastSpaces(i, content);
- while (content[i] != ' ' && content[i] != '\n' && content[i] != '\0') {
- output[tidx] = content[i];
- i++;
- tidx++;
- }
- output[tidx] = '\0';
- return i;
-}
-
-Mesh3d Mesh3d_fromObj(Renderer3D* renderer, const char* content, const i32 len) {
- Mesh3d result;
- result.vertices.allocate(2048);
- result.indices.allocate(2048);
-
- LineItem lt;
- lt.type = LineType_None;
- i32 lineNumber = 0;
- i32 i = 0;
- while (content[i] != '\0') {
- i = readPastSpaces(i, content);
- if (lt.type == LineType_None) {
- lineNumber++;
- char type[32];
- i = readToken(i, content, type);
-
- if (strncmp(type, "#", 1) == 0) {
- lt.type = LineType_Comment;
- }
- else if (strncmp(type, "mtllib", 6) == 0) {
- lt.type = LineType_mtl;
- }
- else if (strncmp(type, "v", 1) == 0) {
- lt.type = LineType_v;
- }
- else if (strncmp(type, "f", 1) == 0) {
- lt.type = LineType_f;
- }
- else {
- i++;
- //lt.type = LineType_Unsupported;
- //logger_error("Unknown type %s, %d", type, lineNumber);
- }
- }
- else {
- char buffer[32];
- switch (lt.type) {
- case LineType_mtl:
- i = readToken(i, content, buffer);
- break;
- case LineType_v: {
- while (content[i] != '\n' && content[i] != '\0') {
- i = readToken(i, content, buffer);
- lt.v.vertices[lt.idx] = atof(buffer);
- lt.idx++;
- }
-
- float fColor = randomFloatBetween(0.8, 1);
- result.vertices.add({
- Vector4(lt.v.vertices[0], lt.v.vertices[1], lt.v.vertices[2], 1.f),
- Vector4(fColor, fColor, fColor, 1)
- });
- break;
- }
- case LineType_f: {
- while (content[i] != '\n' && content[i] != '\0') {
- i = readToken(i, content, buffer);
- lt.v.indices[lt.idx] = atoi(buffer);
- lt.idx++;
- }
-
- auto v1idx = lt.v.indices[0] - 1;
- auto v2idx = lt.v.indices[1] - 1;
- auto v3idx = lt.v.indices[2] - 1;
-
- result.indices.add(v1idx);
- result.indices.add(v2idx);
- result.indices.add(v3idx);
-
- auto& v1 = result.vertices[v1idx];
- auto& v2 = result.vertices[v2idx];
- auto& v3 = result.vertices[v3idx];
- Vector3 normal = (v1.position - v2.position).cross(v1.position - v3.position).toVector3().normalize();
- v1.normal = normal;
- v2.normal = normal;
- v3.normal = normal;
- break;
- }
- default:
- i = readPastLine(i, content);
- break;
- }
-
- lt = LineItem();
- }
- }
-
- printf("Completed Mesh3d loading.\n");
- result.load(renderer);
- return result;
-}
-
-void Mesh3d::load(Renderer3D* renderer) {
- glGenVertexArrays(1, &vao);
- glGenBuffers(1, &vbo);
- glGenBuffers(1, &ebo);
-
- glBindVertexArray(vao);
-
- glBindBuffer(GL_ARRAY_BUFFER, vbo);
- glBufferData(GL_ARRAY_BUFFER, vertices.numElements * sizeof(Vertex3d), &vertices.data[0], GL_STATIC_DRAW);
-
- glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, ebo);
- glBufferData(GL_ELEMENT_ARRAY_BUFFER, indices.numElements * sizeof(GLuint), &indices.data[0], GL_STATIC_DRAW);
-
- // Position
- glEnableVertexAttribArray(renderer->attributes.position);
- glVertexAttribPointer(renderer->attributes.position, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex3d), (GLvoid *)0);
-
- // Color
- glEnableVertexAttribArray(renderer->attributes.color);
- glVertexAttribPointer(renderer->attributes.color, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex3d), (GLvoid *)offsetof(Vertex3d, color));
-
- // Normal
- glEnableVertexAttribArray(renderer->attributes.normal);
- glVertexAttribPointer(renderer->attributes.normal, 4, GL_FLOAT, GL_FALSE, sizeof(Vertex3d), (GLvoid *)offsetof(Vertex3d, normal));
-
- glBindVertexArray(0);
-}
-
-void Mesh3d::unload() {
- if (vao) glDeleteVertexArrays(1, &vao);
- if (vbo) glDeleteBuffers(1, &vbo);
- if (ebo) glDeleteBuffers(1, &ebo);
- vertices.deallocate();
- indices.deallocate();
-}
-
-void Mesh3d::render(Renderer3D* renderer) {
- setShaderMat4(renderer->uniforms.model, model);
-
- glBindVertexArray(vao);
- glDrawElements(GL_TRIANGLES, indices.numElements, GL_UNSIGNED_INT, 0);
- glBindVertexArray(0);
-}
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