def load_texture(texture_id, fname):
gl.bindTexture(gl.TEXTURE_2D, texture_id) # All upcoming GL_TEXTURE_2D operations now have effect on our texture object
# Set our texture parameters
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT) # Set texture wrapping to GL_REPEAT
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
# Set texture filtering
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
# Load, create texture and generate mipmaps
img = PIL.Image.open(fname)
img = PIL.ImageOps.flip(img)
width, height = img.size
data = img.convert("RGBA").tobytes("raw", "RGBA")
# unsigned char* image = SOIL_load_image(FileSystem::getPath("resources/textures/container.jpg").c_str(), &width, &height, 0, SOIL_LOAD_RGB);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, data)
gl.generateMipmap(gl.TEXTURE_2D)
gl.bindTexture(gl.TEXTURE_2D, 0) # Unbind texture when done, so we won't accidentily mess up our texture.
def main():
glfw.setErrorCallback(error_callback)
glfw.init()
glfw.windowHint(glfw.CONTEXT_VERSION_MAJOR, 3)
glfw.windowHint(glfw.CONTEXT_VERSION_MINOR, 3)
glfw.windowHint(glfw.OPENGL_PROFILE, glfw.OPENGL_CORE_PROFILE)
# glfw.windowHint(glfw.RESIZABLE, gl.FALSE)
glfw.windowHint(glfw.OPENGL_FORWARD_COMPAT, 1)
window = glfw.createWindow(800, 600, "LearnOpenGL")
if window is None:
print('could not open window.')
glfw.terminate()
sys.exit()
window.makeContextCurrent()
window.setKeyCallback(key_callback)
err = gl.getError()
if err:
print("WINDOW OPEN ERROR:", err)
shaderProgram = Shader(VERTEX_SHADER_SOURCE, FRAGMENT_SHADER_SOURCE)
shaderProgram.use()
vao = gl.genVertexArrays(1)[0]
vbo, ebo = gl.genBuffers(2)
# 1. Bind Vertex Array Object
gl.bindVertexArray(vao)
# 2. Copy our vertices array in a buffer for OpenGL to use
gl.bindBuffer(gl.ARRAY_BUFFER, vbo)
gl.bufferData(gl.ARRAY_BUFFER, vertices, gl.STATIC_DRAW)
# 2. Copy our index array in a buffer for OpenGL to use
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, ebo)
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER, indices, gl.STATIC_DRAW)
# Position attribute
gl.vertexAttribPointer(0, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.position.offset)
gl.enableVertexAttribArray(0)
# Color attribute
gl.vertexAttribPointer(1, 3, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.color.offset)
gl.enableVertexAttribArray(1)
# TexCoord attribute
gl.vertexAttribPointer(2, 2, gl.FLOAT, gl.FALSE, sizeof(Vertex), Vertex.texcoord.offset)
gl.enableVertexAttribArray(2)
# 4. unbind the vbo
gl.bindBuffer(gl.ARRAY_BUFFER, 0)
# 4. Unbind the VAO
gl.bindVertexArray(0)
# create the texture object, load the texture
# Load and create a texture
texture1, texture2 = gl.genTextures(2)
# ====================
# Texture 1
# ====================
gl.bindTexture(gl.TEXTURE_2D, texture1) # All upcoming GL_TEXTURE_2D operations now have effect on our texture object
# Set our texture parameters
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT) # Set texture wrapping to GL_REPEAT
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
# Set texture filtering
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
# Load, create texture and generate mipmaps
img = PIL.Image.open('learningopengl/resources/textures/container.jpg')
img = PIL.ImageOps.flip(img)
width, height = img.size
data = img.convert("RGBA").tobytes("raw", "RGBA")
# unsigned char* image = SOIL_load_image(FileSystem::getPath("resources/textures/container.jpg").c_str(), &width, &height, 0, SOIL_LOAD_RGB);
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, data)
gl.generateMipmap(gl.TEXTURE_2D)
gl.bindTexture(gl.TEXTURE_2D, 0) # Unbind texture when done, so we won't accidentily mess up our texture.
# ===================
# Texture 2
# ===================
gl.bindTexture(gl.TEXTURE_2D, texture2)
# Set our texture parameters
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_S, gl.REPEAT)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_WRAP_T, gl.REPEAT)
# Set texture filtering
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MIN_FILTER, gl.LINEAR)
gl.texParameteri(gl.TEXTURE_2D, gl.TEXTURE_MAG_FILTER, gl.LINEAR)
# Load, create texture and generate mipmaps
img = PIL.Image.open('learningopengl/resources/textures/awesomeface.png')
img = PIL.ImageOps.flip(img)
width, height = img.size
data = img.convert("RGBA").tobytes("raw", "RGBA")
gl.texImage2D(gl.TEXTURE_2D, 0, gl.RGBA, width, height, 0, gl.RGBA, gl.UNSIGNED_BYTE, data)
gl.generateMipmap(gl.TEXTURE_2D)
# SOIL_free_image_data(image);
gl.bindTexture(gl.TEXTURE_2D, 0);
while not window.shouldClose():
glfw.pollEvents()
framebuffer_width, framebuffer_height = window.getFramebufferSize()
gl.viewport(0, 0, framebuffer_width, framebuffer_height)
gl.clearColor(0.2, 0.3, 0.3, 1.0)
gl.clear(gl.COLOR_BUFFER_BIT)
shaderProgram.use()
# Bind Textures using texture units
gl.activeTexture(gl.TEXTURE0)
gl.bindTexture(gl.TEXTURE_2D, texture1);
gl.uniform1i(shaderProgram.getUniformLocation("ourTexture1"), 0);
gl.activeTexture(gl.TEXTURE1);
gl.bindTexture(gl.TEXTURE_2D, texture2);
gl.uniform1i(shaderProgram.getUniformLocation("ourTexture2"), 1);
gl.bindVertexArray(vao)
gl.drawElements(gl.TRIANGLES, 6, gl.UNSIGNED_INT, 0)
# gl.drawArrays(gl.TRIANGLES, 0, 3);
gl.bindVertexArray(0)
window.swapBuffers()
gl.deleteVertexArrays([vao])
gl.deleteBuffers([vbo, ebo])