From d3ee1f5766436ebc4bdc962ed1788c08a44a1e6d Mon Sep 17 00:00:00 2001 From: iurii plugatarov Date: Sat, 17 Aug 2024 19:29:09 +0300 Subject: linalg --- src/main.odin | 34 +++++++++++++++++++++++++++------- 1 file changed, 27 insertions(+), 7 deletions(-) diff --git a/src/main.odin b/src/main.odin index b343013..aa45ba0 100644 --- a/src/main.odin +++ b/src/main.odin @@ -335,6 +335,19 @@ main :: proc() { gl.Enable(gl.DEPTH_TEST) + cube_positions: []linalg.Vector3f32 = { + linalg.Vector3f32{0.0, 0.0, 0.0}, + linalg.Vector3f32{2.0, 5.0, -15.0}, + linalg.Vector3f32{-1.5, -2.2, -2.5}, + linalg.Vector3f32{-3.8, -2.0, -12.3}, + linalg.Vector3f32{2.4, -0.4, -3.5}, + linalg.Vector3f32{-1.7, 3.0, -7.5}, + linalg.Vector3f32{1.3, -2.0, -2.5}, + linalg.Vector3f32{1.5, 2.0, -2.5}, + linalg.Vector3f32{1.5, 0.2, -1.5}, + linalg.Vector3f32{-1.3, 1.0, -1.5}, + } + for !glfw.WindowShouldClose(window) { process_input(&window) @@ -346,9 +359,6 @@ main :: proc() { gl.ActiveTexture(gl.TEXTURE1) gl.BindTexture(gl.TEXTURE_2D, texture2) - rotation: f32 = f32(glfw.GetTime()) - - model := linalg.matrix4_rotate(rotation, linalg.Vector3f32{0.5, 1.0, 0.0}) aspect: f32 = 800.0 / 600.0 view := linalg.matrix4_translate(linalg.Vector3f32{0.0, 0.0, -3.0}) @@ -359,9 +369,6 @@ main :: proc() { 100.0, ) - model_location := gl.GetUniformLocation(shdr.id, "model") - gl.UniformMatrix4fv(model_location, 1, gl.FALSE, &model[0][0]) - view_location := gl.GetUniformLocation(shdr.id, "view") gl.UniformMatrix4fv(view_location, 1, gl.FALSE, &view[0][0]) @@ -372,7 +379,20 @@ main :: proc() { gl.BindVertexArray(vao) - gl.DrawArrays(gl.TRIANGLES, 0, 36) + + for cube_position, i in cube_positions { + model := linalg.matrix4_translate(cube_position) + angle: f32 = linalg.to_radians(20.0 * cast(f32)i) + model *= linalg.matrix4_rotate(angle, linalg.Vector3f32{1.0, 0.3, 0.5}) + + + model_location := gl.GetUniformLocation(shdr.id, "model") + gl.UniformMatrix4fv(model_location, 1, gl.FALSE, &model[0][0]) + + + gl.DrawArrays(gl.TRIANGLES, 0, 36) + } + glfw.SwapBuffers(window) glfw.PollEvents() -- cgit 1.4.1-2-gfad0